An improved composition and method for passivating vanadium on or in a catalytic cracking catalyst during the process of catalytic cracking of hydrocarbons is described. The improved method comprises mixing discrete particles of lanthanum oxide and, optionally, other rare earth oxides along with the ...

A process for upgrading low octane naphthas to produce gasoline products with low levels of benzene and aromatics while retaining a high pool octane uses a paraffinic naphtha reformer feed which is dehexanized to provide a C.sub.7 + fraction which is fed to the reformer and a C.sub.6 fraction which ...

There is provided a method for preparing an alumina bound, zeolite catalyst, wherein a zeolite of low silanol content is used as the source of zeolite used to prepare the catalyst. A particular zeolite used in this catalyst is zeolite Y. This catalyst may be combined with at least one hydrogenation ...

A process is provided for producing a high quality lubricating oil base stock in increased yield. The process includes a hydrocracking step employing a catalyst composition comprising a zeolite of the faujasite type, e.g., zeolite USY, possessisng a silica:alumina ratio of at least about 50:1, and a ...

A known method for passivating contaminant metals on an FCC catalyst comprises treating the catalyst with a sufficient amount of a sulfur-containing compound capable of associating with the contaminant metals when in contact therewith. An improvement comprises contacting the catalyst with the sulfur ...

There is provided a method for preparing an alumina bound, zeolite catalyst, wherein a zeolite of low silanol content is used as the source of zeolite used to prepare the catalyst. A particular zeolite used in this catalyst is zeolite Y. This catalyst may be combined with at least one hydrogenation ...

High viscosity index, low pour point lubricants are produced by reacting an iso-paraffinic component, preferably with significant mono- and di-methyl chain branching, with an olefinic reactant in the presence of a free radical generator such as an organic peroxide, preferably ditertiary butyl peroxi ...

There is provided a process and a catalyst for hydrocracking hydrocarbons, such as gas oils. The catalyst comprises a hydrogenating metal and small crystal size zeolite Y. The zeolite Y may have a crystal size of less than one micron. Examples of hydrogenating metals include nickel and tungsten.